A protection shed frame for submarine cable terminal manufacturing

Abstract

The application discloses a protection shed frame for submarine cable terminal manufacturing and relates to the field of submarine cable terminal construction. The submarine cable terminal has high requirements for environmental factors during manufacturing. More cable accessory failures are caused by the construction environment when the construction is carried out in the open air. The application comprises a steel structure vertical frame and a shed cloth located around the steel structure vertical frame, a movable roof is arranged on the top, cable wind ropes are arranged on the shed cloth, the steel structure vertical frame is vertically arranged with multiple working platforms, square holes are arranged in the middle of each working platform and the top surface, vertical ladders are arranged on the inner side of the square holes; the lower end of the steel structure vertical frame is connected and fixed to the ground base. A stable indoor construction environment is realized, the vertical ladders in the middle are convenient for the climbing of workers, the square hole channels are convenient for the vertical standing of the submarine cable terminal, through the multiple working platforms, the standing and operation of the workers are facilitated when the workers remove the insulating shielding layer of the submarine cable outer sheath, continuous operation in the vertical direction is realized, the operation quality is improved, and the failure probability is reduced.

Description

Technical Field

[0001] The present invention relates to the field of submarine cable terminal construction, and in particular to a protective scaffolding for submarine cable terminal production. Background Art

[0002] According to empirical statistics, about 70% of the probability of cable accessory failure is caused by construction, among which the construction environment factor is the most important. Whether the construction environment meets the requirements for the installation of 500KV cable accessories directly determines the installation quality of the accessories. The submarine cable terminal has high requirements for environmental factors such as humidity and dust during production. It cannot be constructed in an open-air environment and requires a relatively stable indoor environment. When the operators strip the insulation shielding layer of the submarine cable outer sheath, they need a platform for continuous operation in the vertical direction. To meet the above requirements, it is necessary to set up an outer protective cover around the terminal for the construction workers to work. Summary of the Invention

[0003] The technical problem to be solved and the technical task proposed by the present invention are to improve and perfect the existing technical solutions and provide a protective scaffolding for submarine cable terminal production to meet the requirements of submarine cable terminal production and improve the quality of terminal operation. To this end, the present invention adopts the following technical solutions.

[0004] A protective scaffolding for submarine cable terminals comprises a steel frame with a square cross-section and a scaffolding located around the steel frame, with guy ropes hung from the scaffolding. A movable roof is provided on the top of the steel frame. The steel frame comprises six load-bearing columns, four of which are located at the four outer corners of the frame, and the other two are arranged opposite each other on the outer side, forming a layout of three columns on each of two opposite sides, and each column is equidistant and parallel to the columns on both sides. The steel frame is vertically arranged with multiple working platforms, and adjacent columns are provided with oblique profiles for strengthening the connection. Square holes are provided in the middle and top surfaces of each working platform, and vertical ladders are provided on the inner side of the square holes. The lower ends of the six load-bearing columns are connected and fixed to a ground foundation. The square hole channel in the middle of the steel structure frame can be used as a channel for erecting the submarine cable terminal. The vertical ladder in the middle is convenient for workers to climb. The movable roof and the surrounding tarpaulin provide a stable indoor construction environment. The multi-layer working platform allows workers to stand and operate on each layer when stripping the insulation shielding layer of the submarine cable outer sheath, realizing continuous operation in the vertical direction, which can effectively improve the working environment, improve the work quality and efficiency, shorten the operation time, and reduce the probability of failure.

[0005] As a preferred technical means: the work platform includes a platform plate and supporting beams at the bottom of the platform plate. The supporting beams include outer beams connected between the columns and inner beams connected between the outer beams. A short reinforcing beam is provided between the outer beams and the inner beams. This can provide effective platform support.

[0006] As a preferred technical measure, multiple vertical guardrails are arranged between adjacent columns on the outer perimeter of each working platform. This effectively improves the safety of platform operations and prevents workers from accidentally falling outward.

[0007] As a preferred technical approach, the steel structure frame comprises independently transportable left and right halves, each with three columns. Small vertical columns are located on the outside of the joint surface where the left and right halves meet, and short reinforcement beams are located on the top and bottom surfaces of the joint surface. By dividing the frame into two halves, the weight and difficulty of transportation are effectively reduced, the crane's lifting weight is reduced, and installation is facilitated.

[0008] As an optimal technical means: the vertical ladder is located on the left half frame or the right half frame. Since the left half frame and the right half frame are symmetrically identical half frames, the vertical ladder can be located on one of the half frames for ease of manufacture.

[0009] As a preferred technical approach, the left and right half-frames are each composed of two independent upper and lower sections. The column connections of the two sections are connected by two sets of connectors located on the two sides of the columns. These connectors include connecting plates and bolts. During connection, the two connecting plates clamp the bolt fixing plates welded to the sides of the column connection, and then the bolts are tightened. By splitting each half-frame into two parts, each component takes up less space, is lighter, and is easier to transport and lift for installation.

[0010] As an optimal technical means: vertical columns are installed at the four corners of the square hole inside the working platform between the upper and lower working platforms. They play a supporting and reinforcing role, making the structure more solid.

[0011] As a preferred technical approach, the outer crossbeams, diagonal profiles, vertical columns, and guardrails are all welded together, with the left and right half frames also welded together. This ensures a strong and reliable weld, ensuring good integrity and preventing loosening of the connections due to transport vibrations.

[0012] As a preferred technical means: the ground foundation concrete pre-embeds threaded steel clusters, on which prefabricated steel plates are welded, with the upper surface of the prefabricated steel plates exposed on the concrete surface. The prefabricated steel plates can be repeatedly welded.

[0013] As a preferred technical means: the inter-layer height of the working platform is between 1.8 and 2 meters, which is suitable for the height of ordinary operators and is convenient for submarine cable terminal operations.

[0014] Beneficial effects: The square hole channel in the middle of the steel structure frame can be used as a channel for erecting the submarine cable terminal. The vertical ladder in the middle is convenient for workers to climb. Through the movable roof and the surrounding tarpaulin, a stable indoor construction environment is achieved. Through the multi-layer working platform, workers can stand and operate on each layer when stripping the insulating shielding layer of the submarine cable outer sheath, and continuous operation can be achieved in the vertical direction, which can effectively improve the working environment, improve work quality and efficiency, shorten work time, and reduce the probability of failure. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the present invention.

[0016] Figure 2 This invention Figure 1 Schematic diagram of the enlarged structure of part A in the middle.

[0017] In the figure: 1-column; 2-working platform; 3-oblique profile; 4-vertical ladder; 5-guardrail; 6-vertical column; 7-connecting plate; 8-bolt fixing plate; 9-bolt; 10-threaded steel cluster; 11-prefabricated steel plate; 12-vertical small column; 201-platform plate; 202-support beam; 20201-external beam. DETAILED DESCRIPTION

[0018] The technical solution of the present invention is further described in detail below with reference to the accompanying drawings.

[0019] like Figure 1-2 As shown, a protective scaffolding made of a submarine cable terminal includes a steel structure frame with a square cross-section and a scaffolding located around the steel structure frame, with guy ropes hung outside the scaffolding, and a movable roof provided on the top of the steel structure frame; the steel structure frame includes 6 load-bearing columns 1, of which four columns 1 are located at the four outer corners of the steel structure frame, and the other two are arranged opposite to each other on the outer side, forming a layout of 3 columns on each of two opposite sides, and each column 1 is equidistant and parallel to the columns 1 on both sides; the steel structure frame is vertically arranged with 7 layers of working platforms 2, and adjacent columns 1 are provided with inclined profiles 3 for strengthening the connection, and the middle and top surfaces of each working platform 2 are provided with square holes, and the inner side surfaces of the square holes are provided with vertical ladders 4; the lower ends of the 6 load-bearing columns 1 are connected and fixed to the ground foundation.

[0020] To provide effective platform support, the work platform 2 includes a platform plate 201 and a support beam 202 located at the bottom of the platform plate 201. The support beam 202 includes an outer beam 20201 connected between the columns 1 and an inner beam connected between the outer beams 20201. A short reinforcement beam is provided between the outer beam 20201 and the inner beam. This can provide effective platform support.

[0021] In order to prevent workers from accidentally falling outward, two vertically arranged guardrails 5 are arranged between adjacent columns 1 on each working platform 2. This can effectively improve the safety of platform operations and prevent workers from accidentally falling outward.

[0022] To facilitate transportation and lifting installation, the steel structure frame consists of independently transportable left and right half frames. Each half frame has three columns 1. Small vertical columns 12 are provided on the outside of the joint surface of the left and right half frames. Short reinforcement beams are provided on the top and bottom surfaces of the joint surface. By dividing the frame into two halves, the weight and difficulty of transportation can be effectively reduced, the lifting weight of the crane can be reduced, and installation can be facilitated.

[0023] For the convenience of manufacturing, vertical ladder 4 is positioned on the left half frame. Because left half frame and right half frame are symmetrically identical half frames, vertical ladder 4 can be located on the left half frame, keep the integrity of vertical ladder 4, be convenient to manufacture.

[0024] To facilitate transportation and lifting installation, the left and right half-frames are each composed of two separate upper and lower sections. The connection points of the two sections to the columns 1 are connected by two sets of connectors located on the two sides of the columns. The connectors include connecting plates 7 and bolts 9. When connecting, the two connecting plates 7 clamp the bolt fixing plates 8 welded to the sides of the column 1 at the connection point, and then tighten them with bolts 9. By splitting each half-frame into two parts, each component takes up less space and weighs less, making it easier to transport and lift.

[0025] In order to make the structure stronger, vertical columns 6 are provided at the four corners of the square hole inside the working platform 2 between the upper and lower working platforms 2. They play a supporting and strengthening role, making the structure stronger.

[0026] To ensure a secure connection, the outer crossbeam 20201, diagonal profile 3, vertical column 6, and guardrail 5 are all welded together, including the butt joints of the left and right half frames. This weld is strong and reliable, with a simple process and good integrity, and is less likely to loosen due to vibration during transportation.

[0027] In order to achieve repeated welding, the ground foundation concrete is pre-embedded with threaded steel clusters 10, and prefabricated steel plates 11 are welded on the threaded steel clusters 10, and the upper surface of the prefabricated steel plates 11 is exposed on the concrete surface. The prefabricated steel plates 11 can achieve repeated welding.

[0028] In order to facilitate the operation of the submarine cable terminal, the inter-layer height of the working platform 2 is 1.8 meters, which is suitable for the height of ordinary operators and is convenient for the operation of the submarine cable terminal.

[0029] During on-site installation, the ground must be leveled first, the foundation excavated, steel bars tied, formwork supported, embedded parts buried on-site, and the foundation poured; PVDF membrane cloth materials are purchased and then produced and welded in the factory; the steel structure components are hoisted on-site. During hoisting, the two-point hoisting method is adopted. The steel structure components should be trial-hoisted first. Under the premise of meeting the stability requirements, they are slowly lifted. When hoisted to above the required height, workers on the construction platform hold the steel structure components, align them with the installation positioning center line, and slowly drop them to check the verticality and horizontality of the steel structure components. Under the premise of meeting the requirements, welding and bolting 9 are carried out, and the prefabricated steel plates 11 between the columns 1 and the ground are welded and fixed. After all steel structure components are installed, the shed cloth and the movable roof with square holes on the top surface are finally installed, and then the guy ropes are hung.

[0030] When working on the submarine cable terminal, the submarine cable terminal is erected in the middle square hole channel, and the operator climbs up to the working platform 2 through the vertical ladder 4. The gap between the submarine cable terminal head and the working platform 2 is connected with a springboard. Through the movable roof and the surrounding tarpaulin, a stable indoor construction environment is achieved. Through the multi-layer working platform 2, the operator can stand and operate on each layer when stripping the insulating shielding layer of the submarine cable outer sheath, and continuous operation is achieved in the vertical direction, which can effectively improve the working environment, improve the work quality and efficiency, shorten the operation time, and reduce the probability of failure.

[0031] In this example, the side length of the square hole on the top surface is 1.8 meters; the awning cloth is a PVDF coated membrane cloth.

[0032] above Figure 1-2 The protective scaffolding for a submarine cable terminal shown is a specific embodiment of the present invention, which has embodied the substantial features and progress of the present invention. Based on actual use needs and under the guidance of the present invention, equivalent modifications in shape, structure, etc. can be made to the scaffolding, which are all within the scope of protection of this solution.

Claims

1. A protective scaffolding for submarine cable terminals, characterized by: The invention comprises a steel structure frame with a square cross section and a tent cloth located around the steel structure frame, a cable wind rope is hung on the outside of the tent cloth, and a movable roof is provided on the top of the steel structure frame. The movable roof can be opened and closed to cover the square hole on the top surface to form a closed construction environment; the steel structure frame comprises 6 load-bearing columns (1), of which four columns (1) are located at the four corners of the outer side of the steel structure frame, and the other two columns are arranged opposite to each other on the outer side, forming a layout of 3 columns on each side of 2 opposite sides, and each column (1) is parallel to the columns (1) on both sides at equal intervals; the steel structure frame is vertically arranged with multiple working platforms (2), and adjacent columns ( 1) are provided with a reinforced connecting oblique profile (3), the middle and top surfaces of each working platform (2) are provided with a square hole, and the inner side surface of the square hole is provided with a vertical ladder (4); the lower ends of the 6 load-bearing columns (1) are connected and fixed to the ground foundation; the steel structure frame includes a left half frame and a right half frame that can be transported independently, the left half frame and the right half frame, and the left half frame and the right half frame each have 3 columns (1), and a vertical small column (12) is provided on the outer side of the closed joint surface of the left half frame and the right half frame, and the top surface and the bottom surface of the closed joint surface are provided with a short reinforcing beam; the vertical ladder (4) is located on the inner side surface of the square hole of the left half frame or the right half frame.

2. The protective scaffolding for submarine cable terminal manufacturing according to claim 1, characterized in that: The working platform (2) comprises a platform plate (201) and a supporting beam (202) located at the bottom of the platform plate (201), wherein the supporting beam (202) comprises an outer beam (20201) connected between the columns (1) and an inner beam connected between the outer beams (20201), and a short reinforcing beam is provided between the outer beam (20201) and the inner beam.

3. The protective scaffolding for submarine cable terminal manufacturing according to claim 2, characterized in that: On each working platform (2), a plurality of vertically arranged guardrails (5) are arranged between adjacent columns (1) on the periphery.

4. The protective scaffolding for submarine cable terminal manufacturing according to claim 2, characterized in that: The left half frame and the right half frame are both composed of two independent upper and lower sections. The connection parts of the columns (1) of the upper and lower sections are connected by two sets of connecting parts located on the two sides of the columns. The connecting parts include connecting plates (7) and bolts (9). When connecting, the bolt fixing plates (8) welded on the sides of the connection parts of the columns (1) are clamped by the two connecting plates (7), and then connected and tightened by the bolts (9).

5. The protective scaffolding for submarine cable terminal production according to claim 4, characterized in that: Vertical columns (6) are provided at the four corners of the inner square hole of the working platform (2) between the upper and lower working platforms (2).

6. The protective scaffolding for submarine cable terminal production according to claim 5, characterized in that: The outer crossbeam (20201), the oblique profile (3), the vertical column (6), and the guardrail (5) are all connected by welding, and the butt joint surface between the left half frame and the right half frame is welded.

7. The protective scaffolding for submarine cable terminal production according to claim 6, characterized in that: The ground foundation concrete pre-buried threaded steel cluster (10), the threaded steel cluster (10) is welded with a prefabricated steel plate (11), and the upper surface of the prefabricated steel plate (11) is exposed to the concrete surface.

8. The protective scaffolding for submarine cable terminal manufacturing according to claim 1, characterized in that: The inter-layer height of the working platform (2) is between 1.8 and 2 meters.

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